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History of Aluminum Die Casting

2015-10-16

Aluminum was found in 1825 by a Danish, scientist, and Han, using chemical processes. Due to the very high cost, which is equivalent to silver, there is no major, development, until the "electrolysis" method, the invention of the Charles Mi hall. The new development began in 1876, the first aluminum casting, production using sand mold. By 2010, there are about 33, with different methods available for. In these, one of the most commercial success of the process is, "the traditional high pressure Die Casting". But there are some major drawbacks for good, such as air and porosity, shrinkage hole, severe surface defects, such as cold vortex, vortex, and more. These are also unable to weld, heat treatment to improve the mechanical properties of castings. In order to overcome these defects, many new processes have emerged. In these, to overcome the above shortcomings, casting, strength increase, pouring, casting the minimum wall thickness from 6 drop, mm (CAST) 0.8 mm vacuum die, as well as up to 0.5 mm. Such good results, is very much, is conducive to the fierce competition in the automotive industry.

In the development of the modern process, a lot of money into the process of development in the world, through this process, their product quality and competitive advantage are relatively good. At this point, the paper briefly describes some of the new processes, which led to the above great achievements, is.

Conclusion

1) in the process of modern casting, the turbulence is eliminated almost in the filling cavity.

2) air and gas porosity is very much reduced / avoided.

3) the structure of the organization is good.

4) the casting wall thickness is reduced to 0.5 mm, which cannot be obtained by conventional die casting.

5) local shrinkage extrusion.

6) casting heat treatment and welding.

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